Archive image from page 309 of Diptera Danica genera and species Diptera Danica: genera and species of flies hitherto found in Denmark dipteradanicage01lund Year: 1907 J28 Orthorrhapha brachycera. the anterior margin; veins brown; costa at thie base with black spinules in the margin and yellow haired above. Squamulae light brownish with a yellow fringe at the margin. Halteres brownish with the knob white or yellowish white. Female. Agreeing with the male but the frons broad; the legs generally lighter. Length 4—6,5 mm. Remarks: The bristles at the hind margin of the abdominal segments are ge
Archive image from page 309 of Diptera Danica genera and species Diptera Danica: genera and species of flies hitherto found in Denmark dipteradanicage01lund Year: 1907 J28 Orthorrhapha brachycera. the anterior margin; veins brown; costa at thie base with black spinules in the margin and yellow haired above. Squamulae light brownish with a yellow fringe at the margin. Halteres brownish with the knob white or yellowish white. Female. Agreeing with the male but the frons broad; the legs generally lighter. Length 4—6,5 mm. Remarks: The bristles at the hind margin of the abdominal segments are generally described as black; in all the Danish specimens I have seen they are nearly always yellow to light brownish. S. sulphureus is common in Denmark in suitable localities; Tis- vilde, Rorvig; on Funen at Faaborg; in Jutland at Villeb0lle north of Ribe, Silkeborg, Kandestederne south of Skagen and Skagen. My dates are le to the first half of August. It occurs in sandy districts and especially on heaths, often in great numbers. I generally found it on the heaths at places where the Galluna was scattered, with the sand somewhat open and covered by Lichens; it flies very dexterously and is not easily caught. As already noticed by Zeller (Isis 1840, 14, 16) the fly produces a faint humming when flying. Geographical distribution: — Europe down into Italy; towards the north to middle Scandinavia; also in parts of Asia and in the northern Africa. 6. Phthiria Meig. Species of small size and of greyish or blackish colour, moderately hairy; sometimes the females have yellow markings. Head somewhat broader than thorax and broader than high, slightly arched behind; frons and face more or less protruding. Eyes touching in the male, broadly separated in the female. Antennae inserted near to each other in the middle on the protruding face. Jowls somewhat de- Fig. 43, Antenna of P. pulicaria. X 90. scending below the eyes. Antennae three-jointed, the two basal joints short, cylindric
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